Researcher, portfolio analyst Merrill, Lynch, Pierce et al, New York City, 1961-1963. Director special situations researcher Orvis Brothers, 1964-1966. Director research Amott, Baker, 1966-1969.
Vice president research counsel Bruns, Nordemann & Rea, 1970-1975. Vice president research associate Rosenkrantz, Ehrenkrantz, 1976-1977. Investment banker Herzfeld & Stern, Stamford, Connecticut, 1978-1982.
Chairman, president Viral Response Systems, Inc., Greenwich, since 1983.
With United States Army Reserve, 1959. Member National Association Chain Drug Stores, American Mensa (Philanthropic award 1987), Inventors Association Connecticut (Inventor of Year 1988), United States Tennis Association (ranked 1995), The Wimbledon Society, Landmark Club, East Hampton Tennis Club (mixed doubles champ 1972), Armonk Tennis Club, Grand Slam Tennis Club (singles champ 1977, 78), San Diego Tennis and Racquet Club, Balboa Tennis CLub.